Question

A circular fountain has a drain in the center. The distance from the drain to the edge of the fountain is 3 feet. What is the circumference of the fountain? Round your answer to the nearest tenth of a foot.

Answer 1

18.8 feet

Explanation:

Since the drain is in the center, the distance between the drain and the edge is the radius of the circular fountain.

Use the circumference formula: C = 2
`\pi`r, and plug in 3 as r (the radius).

C = 2
`\pi`r

C = 2
`\pi`(3)

Solve for C:

C = 6
`\pi`

C = 18.8

So, the circumference of the fountain is approximately 18.8 feet